ZIP code · Port Costa · California · United States
ZIP code 94569 — Port Costa
ZIP code 94569 serves Port Costa, California.
- Postal code
- 94569Single source Value from one source, not cross-checked.
- City
- Port Costa
- County
- Contra Costa FIPS 06013
- State
- California
- Country
- United States
- Coordinates
- 38.0460, -122.1866 — precision precise (locality)
View on OpenStreetMap - Population
- 194 (ZCTA, ACS 5-year)
- Population density
- 151 / sq mi
- Land area
- 1.3 sq mi (3.3 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $36,710
- Median age
- 68.5
- Households
- 144
- Housing units
- 144
- Median home value
- $586,500
- Congressional district
- CA-8 (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
Tools: compare 94569 with another ZIP · ZIPs within 25 miles · distance from 94569
Map of ZIP code 94569
Climate — monthly normals
Warmest month Sep (avg high 86°F), coldest Jan (avg low 42°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 57 | 63 | 68 | 73 | 78 | 83 | 85 | 86 | 86 | 79 | 66 | 58 |
| Avg low °F | 42 | 45 | 46 | 47 | 51 | 54 | 56 | 56 | 57 | 54 | 47 | 42 |
| Precip in | 4.5 | 3.6 | 3.2 | 1.4 | 0.8 | 0.2 | 0.0 | 0.0 | 0.1 | 1.0 | 2.2 | 4.5 |
NOAA 1991–2020 climate normals from the nearest station: VALLEJO (3.7 mi) · NOAA NCEI
Places in ZIP 94569
- 1 schools
- 2 restaurants & cafés
- 1 bars & pubs
- 1 playgrounds
- 1 post offices
- 1 places of worship
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page